c# - 在 C# 中过滤字符串的子列表

Question

我有一个看起来像这样的对象

class MyObject
{
    string Name;
    string Description;
    List<string> Keywords;
}

当我搜索这些时，我有一个List<MyObject> AllObjects，我想根据Keywords

var query = Request["q"];
//will only return exact matches
var exactHits = GetAll().Where(x => x.Keywords.Contains(query));
//I want something like this
var searchHits = GetAll().Where(x => x.Keywords.Contains(Regex.Match(query)));

Answer 1

不是 100% 确定 Regex.Match 语法，但应该是这样的：

var searchHits = GetAll().Where(x => x.Keywords.Any( k => Regex.Match(k, query).Success));

这将返回MyObject至少一个关键字与查询正则表达式匹配的所有 s。

Answer 2

Regex reg = new Regex(query);
var searchHits = GetAll().Where(x => x.Keywords.Any(k => reg.IsMatch(k)));